EP1496339A2 - Induktiver Drehwinkelsensor - Google Patents
Induktiver Drehwinkelsensor Download PDFInfo
- Publication number
- EP1496339A2 EP1496339A2 EP04015442A EP04015442A EP1496339A2 EP 1496339 A2 EP1496339 A2 EP 1496339A2 EP 04015442 A EP04015442 A EP 04015442A EP 04015442 A EP04015442 A EP 04015442A EP 1496339 A2 EP1496339 A2 EP 1496339A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- angle
- measuring coils
- sensor
- sensor according
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
- G01D5/2013—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by a movable ferromagnetic element, e.g. a core
Definitions
- the invention relates to an inductive rotation angle sensor for determining the angular position a component rotatable about a rotation axis, with a position detector in the form of a coil arrangement of at least two connected in series, largely identical measuring coils arranged with one between the measuring coils middle voltage tap, wherein the measuring coils each spiral in one Angular sector on a non-magnetic fixed to the housing normal to the axis of rotation and non-conductive carrier disc are arranged, and with a position sensor in the form of two provided with an inductively active material, as Angular sector discs formed sensor discs, which are opposite to each other axially on both sides and parallel to the carrier disc at one with the rotatable Component connected carrier axis are attached.
- Inductive rotation angle sensors have long been in different training and Arrangement known. Especially in the automated control of motion sequences of machines where the rotational angular position of rotary Components, such as the adjusting cam of a variable valve timing a motor vehicle piston engine, of importance, can be the current position the relevant components by means of inductive and thus non-contact and largely wear-free rotating angle sensors are determined.
- the must Angle of rotation sensors depending on the specific application, may be high demands in terms of longevity and robustness mechanical vibrations, shocks, temperature fluctuations, and pollution fulfill.
- rotation angle sensors usually work according to the eddy current principle.
- the rotation angle sensor consists of a fixed coil arrangement at least two series-connected measuring coils with a medium voltage tap and a contact arranged in the vicinity of the coil assembly
- Position sensor made of a highly conductive material, such as Copper or Aluminum, consists and is rigidly connected to the rotatable component.
- inductive rotation angle sensors according to the eddy current principle They work in a design for low excitation frequencies in the kHz range require high nominal inductances of the measuring coils. These are at to achieve compact design by measuring coils, which has a high number of Having coil turns of a wire with a very small conductor cross-section, but disadvantageous in addition to a complex production, a relatively low mechanical Robustness is connected.
- To a sufficient mechanical stability To achieve the coil assembly, then often special bobbin used and provided the coil assembly with special potting compounds, the e.g. when used in automotive engine control systems with operating temperatures of up to must be temperature stable to 160 ° C accordingly. This increases the Cost of production and the advantage of a compact design is at least partially lost.
- a corresponding inductive rotation angle sensor also constructed with a coil assembly of measuring coils with low inductance be.
- the measuring coils of a few turns of wire with larger cable diameter or even as printed conductor coils and the associated Position transmitter as a thin conductive disk made of copper or aluminum be educated.
- the disadvantage here, however, are high required excitation frequencies in the MHz range, which is a costly and expensive oscillator for generating the input side AC voltage and a corresponding demodulation circuit for position evaluation of the output voltage condition.
- This rotation angle sensor has a position detector in the form of a coil arrangement of two series connected largely identical measuring coils, each spirally in an angular sector on a fixed to the housing normal to a rotation axis, non-magnetic and non-conductive carrier disc are arranged, and a position sensor in the form of two made of a highly conductive material, as angle sector discs trained sensor discs, the opposite each other axially on both sides and parallel to the carrier disc at one connected to the rotatable member Carrier axle are attached.
- This known, relatively compact angle of rotation sensor but disadvantageously requires a higher excitation frequency of at least 1 MHz and indicates moderate moderate linearity due to strong nonlinearity in the range of the end positions of the position sensor only a usable rotation angle range from about 140 °.
- the design of the rotation angle sensor according to the permeability principle results in a similar geometric structure to the known rotation angle sensor of the company. Positek Ltd. a higher sensitivity and better linearity at lower excitation frequencies in the range of 30 to 50 kHz.
- the sensitivity of the coil arrangement ie the position-dependent change of the inductances of the measuring coils, and thus the output voltage is substantially increased by the magnetic coupling of the two sensor discs on the soft magnetic connector.
- the usable rotation angle range of the rotation angle sensor according to the invention is then 180 °, when the measuring coils are each arranged in an angular sector of 180 ° on the support disk, and the sensor disks have a surface angle of 180 °.
- the rotation angle sensor is formed such that the Measuring coils each in an equal angle sector smaller than 180 ° symmetrical are arranged on the support disk, and the sensor disks to one have identical surface angle, being centrally between the measuring coils gives an empty angle sector.
- the measuring coils can in this way on the carrier disk be arranged that the associated angle sectors end directly adjacent to one another or smaller than at angular sectors of the measuring coils 120 ° include an empty angle sector, one to the angular sectors of the Measuring coils has identical surface angle.
- the rotation angle range of the position encoder extends in each case from the overlap position with the first Measuring coil over the empty angle sector up to the overlap position with the second measuring coil.
- the measuring coils are each in an angular sector of 120 ° on the Carrier disk arranged, the angular sectors of the two measuring coils border end to each other, so that there is a Leerwinkelsektor also 120 °, and the sensor disks also have a surface angle of 120 °.
- the usable rotation angle range is even 240 °.
- a rotation angle sensor In a second preferred embodiment of such a rotation angle sensor are the measuring coils each arranged in an angular sector of 105 ° on the carrier disk, that they center a Leerwinksektor of also 105 ° and end a blind spot sector of 45 °, and the sensor disks have an area angle of 105 °.
- the usable rotation angle range is only 210 °, but the linearity of the output voltage is especially in the range the end positions of the sensor discs due to the blind spot sector caused less interference between the other measuring coil and the sensor discs significantly improved.
- the rotation angle sensor it may be in the aforementioned embodiments in the field of Leerwinkelsektors to non-linearities between the rotational position of the position sensor and the output voltage come.
- these can be avoided in a relatively simple way, that for compensation in both halves of the empty angle sector in each case at least a with the associated measuring coil connected in series auxiliary coil on the Carrier disk is arranged.
- the rotation angle sensor For amplifying the magnetic field built up by the coil arrangement and thus, to increase the sensitivity of the rotation angle sensor can both Measuring coils each of several axially staggered, mutually insulated, in the same direction wound, and are formed with coil sections connected in series, whereby with a simple and robust construction of the individual partial coils the inductances the measuring coils are significantly increased.
- This can be done both in each case two partial coils of a measuring coil axially on both sides of the carrier disc as also in a multi-layered structure of the carrier disk in each case a partial coil the two measuring coils between two adjacent layers of the carrier disk be arranged.
- a soft magnetic material of the sensor discs and the connector it is preferred to use a Ni-Fe alloy with a nickel content of 45% to 50%, due to a high permeability, a low coercivity, and a low saturation induction high geometric and temporal sensitivity causes.
- a Fe alloy with about 3% silicon content with a Curie temperature of about 750 ° C to be preferred as a soft magnetic material, wherein but then the disadvantage of a lower permeability and a higher Coercive force is to be accepted.
- the rotation angle sensor according to the invention in comparison to known inductive rotation angle sensors, according to the eddy current principle work in a compact and robust design in conjunction with a low excitation frequency improved linearity and a larger usable Has rotational angle range.
- the measuring coils 4 are each spirally present in an angular sector 180 ° on a rigidly attached to a housing member 8 normal to the axis of rotation 6, arranged non-magnetic and non-conductive carrier disc 9 and have with correspondingly few turns a relatively low inductance.
- the position transmitter 7 consists of two made of a soft magnetic material, as angle sector discs also formed by 180 ° sensor discs 10, which are opposite each other axially on both sides and parallel to the carrier disc 9 at a with the rotatable member (not shown) connected to the carrier axis 11 are attached. Via a soft magnetic connector 12 of the carrier axis 11, the two sensor discs 10 are magnetically coupled together.
- the rotation angle sensor 1 operates on the permeability principle, i. dependent from the rotational angular position of the position sensor 7 relative to the coil assembly 3rd the inductances of the measuring coils 4 are changed differently from one another, which in an excitation of the coil assembly 3 with an AC voltage whose Frequency may be present in the range of 30 to 50 kHz, to a corresponding results in changed output voltage at the middle voltage tap 5, which can be evaluated to determine the current angular position.
- the usable rotation angle range 13 is, as indicated in Fig. 2b, in the present case 180 ° and is thus significantly larger than in known rotational angle sensors, which work according to the eddy current principle.
- the measuring coils 4 ' are each in an angular sector of 120 ° on the carrier disk 9 'arranged, wherein the angle sectors adjacent to each other end, and the sensor disks 10 ', which in the present case for clarification of the usable rotation angle range 13 are indicated by dashed lines in the two end positions point a surface angle of also 120 °.
- the rotation angle sensor 1 ' results in sufficient Linearity a usable rotation angle range 13 of 240 °.
- FIG. 3a To improve the linearity of such a rotation angle sensor 1 'according to Fig. 3a is in an otherwise identical embodiment of FIG. 3b in both halves of the Leerwinkelsektors 14 each one connected to the associated measuring coil 4 in series Additional coil 15 on the support plate 9 'arranged.
- the usable rotation angle range 13 is also 240 ° in this case.
- FIG. 4 shows the measuring coils 4 'in each case in an angular sector smaller than 120 °, in the present case of 105 °, so arranged on the support plate 9 ', that is centrally between the measuring coils 4 'a Leerwinkelsektor 14 also 105 ° and ends results in a blind spot sector 16 of 45 ° between the measuring coils.
- the in Fig. 4, respectively in the two end positions dashed lines indicated sensor discs 10 ' have an identical surface angle of 105 °.
- the middle voltage tap 5, with the inner terminals 17 of the two measuring coils 4 'in Compound is present in the carrier disk 9 'between the outer Connections 18 of the measuring coils 4 'laid.
- the usable rotation angle range 13 is now 210 ° in conjunction with improved linearity.
- the rotation angle sensor according to the invention in in a variety of fields, preferably in the automotive sector, applied can be.
- the sensor can, for example, in connection with electromagnetic Valves and a rotary actuator for valve control can be used.
- the position of the rotary actuator can be determined and for the control of the electromagnetic valves are used.
- the rotation angle sensor according to the invention in a variable valve timing a motor vehicle piston engine are used by the sensor Angular position of adjusting cam is monitored or measured and according to the Angular position the valves are controlled.
- the sensor offers an alternative to the Already used sensors because it brings a high cost-saving potential would.
- the inventive rotation angle sensor for determining a Throttle plate angle can be used, the position encoder fixed with a throttle shaft is connected, and depending on the position of the throttle plate different from the position detector, which is parallel to it, behaves.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Demzufolge beträgt der nutzbare Drehwinkelbereich des erfindungsgemäßen Drehwinkelsensors dann 180°, wenn die Messspulen jeweils in einem Winkelsektor von 180° auf der Trägerscheibe angeordnet sind, und die Sensorscheiben einen Flächenwinkel von 180° aufweisen.
- Figur 1:
- Den schematischen Aufbau eines induktiven Drehwinkelsensors in einem radialen Längsschnitt,
- Figur 2:
- den Aufbau des Drehwinkelsensors nach Fig. 1 in zwei axialen Draufsichten,
- Figur 3a:
- den Aufbau einer zweiten Ausführung des Drehwinkelsensors in einer axialen Draufsicht, und
- Figur 3b:
- den Aufbau einer modifizierten Ausführung des Drehwinkelsensors nach Fig. 3a in einer axialen Draufsicht,
- Figur 4:
- den Aufbau einer dritten Ausführung des Drehwinkelsensors in einer axialen Draufsicht.
Claims (13)
- Induktiver Drehwinkelsensor zur Ermittlung der Winkelposition eines um eine Drehachse drehbaren Bauteils, mit einem Positionsdetektor in Form einer Spulenanordnung aus mindestens zwei in Reihe geschalteten, weitgehend identischen Messspulen mit einem zwischen den Messspulen angeordneten mittleren Spannungsabgriff, wobei die Messspulen jeweils spiralförmig in einem Winkelsektor auf einer gehäusefest normal zu der Drehachse befestigten, unmagnetischen und nichtleitenden Trägerscheibe angeordnet sind, und mit einem Positionsgeber in Form von zwei mit einem induktiv wirksamen Werkstoff versehenen, als Winkelsektorscheiben ausgebildeten Sensorscheiben, die einander gegenüberliegend axial beidseitig und parallel zu der Trägerscheibe an einer mit dem drehbaren Bauteil verbundenen Trägerachse befestigt sind, dadurch gekennzeichnet, dass die Sensoranordnung nach dem Permeabilitätsprinzip wirksam ausgebildet ist, dass die Spulenanordnung (3) Messspulen (4) mit relativ geringen Induktivitäten aufweist, und dass die Sensorscheiben (10) aus einem weichmagnetischen Werkstoff bestehen und über ein weichmagnetisches Verbindungsstück (12) der Trägerachse (11) magnetisch miteinander gekoppelt sind.
- Drehwinkelsensor nach Anspruch 1, dadurch gekennzeichnet, dass die Messspulen (4) jeweils in einem Winkelsektor von 180° auf der Trägerscheibe (9) angeordnet sind und die Sensorscheiben (10) einen Flächenwinkel von 180° aufweisen.
- Drehwinkelsensor nach Anspruch 1, dadurch gekennzeichnet, dass die Messspulen (4', 4') jeweils in einem gleich großen Winkelsektor kleiner als 180° symmetrisch auf der Trägerscheibe (9', 9') angeordnet sind und die Sensorscheiben (10', 10') einen dazu identischen Flächenwinkel aufweisen, wobei sich mittig zwischen den Messspulen (4', 4') ein Leerwinkelsektor (14) befindet.
- Drehwinkelsensor nach Anspruch 3, dadurch gekennzeichnet, dass die Messspulen (4') derart auf der Trägerscheibe (9') angeordnet sind, dass die zugeordneten Winkelsektoren endseitig unmittelbar aneinander angrenzen.
- Drehwinkelsensor nach Anspruch 3, dadurch gekennzeichnet, dass die Messspulen (4') bei einem Winkelsektor kleiner als 120° derart auf der Trägerscheibe (9') angeordnet sind, dass der Leerwinkelsektor (14) einen zu den Winkelsektoren der Messspulen (4') identischen Flächenwinkel aufweist.
- Drehwinkelsensor nach Anspruch 4, dadurch gekennzeichnet, dass die Messspulen (4') jeweils in einem Winkelsektor von 120° auf der Trägerscheibe (9') angeordnet sind, und die Sensorscheiben (10') einen Flächenwinkel von 120° aufweisen.
- Drehwinkelsensor nach Anspruch 5, dadurch gekennzeichnet, dass die Messspulen (4') jeweils in einem Winkelsektor von 105° auf der Trägerscheibe (9') angeordnet sind, und die Sensorscheiben (10') einen Flächenwinkel von 105° aufweisen.
- Drehwinkelsensor nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, dass zur Kompensation von Nichtlinearitäten der Spulenanordnung (3') in beiden Hälften des Leerwinkelsektors (14) jeweils zumindest eine mit der zugeordneten Messspule (4') in Reihe geschaltete Zusatzspule (15) auf der Trägerscheibe (9') angeordnet ist.
- Drehwinkelsensor nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass beide Messspulen (4, 4') jeweils aus mehreren axial gestaffelten, voneinander isolierten, gleichsinnig gewickelten, und miteinander in Reihe geschalteten Teilspulen gebildet sind.
- Drehwinkelsensor nach Anspruch 9, dadurch gekennzeichnet, dass jeweils zwei Teilspulen einer Messspule (4, 4') axial beidseitig auf der Trägerscheibe (9, 9') angeordnet sind.
- Drehwinkelsensor nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Trägerscheibe (9, 9') mehrschichtig aufgebaut ist, und jeweils eine Teilspule der beiden Messspulen (4, 4') zwischen zwei benachbarten Schichten der Trägerscheibe (9, 9') angeordnet ist.
- Drehwinkelsensor nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass eine Ni-Fe-Legierung mit einem Nickelanteil von 45% bis 50% als weichmagnetischer Werkstoff der Sensorscheiben (10) und des Verbindungsstückes (12) Verwendung findet.
- Drehwinkelsensor nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass eine Fe-Legierung mit ca. 3% Siliziumanteil als weichmagnetischer Werkstoff der Sensorscheiben (10) und des Verbindungsstückes (12) Verwendung findet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10330898 | 2003-07-09 | ||
DE10330898 | 2003-07-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1496339A2 true EP1496339A2 (de) | 2005-01-12 |
EP1496339A3 EP1496339A3 (de) | 2013-09-11 |
EP1496339B1 EP1496339B1 (de) | 2014-09-10 |
Family
ID=33441671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20040015442 Expired - Fee Related EP1496339B1 (de) | 2003-07-09 | 2004-07-01 | Induktiver Drehwinkelsensor |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1496339B1 (de) |
DE (1) | DE102004033691A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI461854B (zh) * | 2006-04-06 | 2014-11-21 | Asml Netherlands Bv | 微影裝置及器件製造方法 |
CN104567651A (zh) * | 2014-12-16 | 2015-04-29 | 中国科学院苏州生物医学工程技术研究所 | Pcb平面差动电感式角位移传感器 |
CN111656142A (zh) * | 2018-01-30 | 2020-09-11 | 梅科斯股份公司 | 对目标的缺陷有改善响应行为的非接触式径向位置传感器 |
US10921156B2 (en) | 2018-04-10 | 2021-02-16 | Simmonds Precision Products, Inc. | Rotary encoder with additive manufacturing features |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015222017A1 (de) * | 2015-09-15 | 2017-03-16 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Vorrichtung und Sensor zur kontaktlosen Abstands- und/oder Positionsbestimmung eines Messobjektes |
US10864568B2 (en) * | 2016-11-15 | 2020-12-15 | Pride Engineering, Llc | Tool pack assembly |
DE102020209601A1 (de) * | 2020-07-30 | 2022-02-03 | SUMIDA Components & Modules GmbH | Erfassungsvorrichtung für einen Lagegeber und Erfassungssystem mit einer solchen Erfassungsvorrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IE55855B1 (en) * | 1984-10-19 | 1991-01-30 | Kollmorgen Ireland Ltd | Position and speed sensors |
DE3824534A1 (de) * | 1988-07-20 | 1990-01-25 | Bosch Gmbh Robert | Messeinrichtung zur beruehrungslosen bestimmung einer weg- und/oder winkelaenderung |
DE9105145U1 (de) * | 1991-04-26 | 1992-08-27 | Papst-Motoren GmbH & Co KG, 7742 St Georgen | Positionssensor für Drehbewegungen |
JP4189872B2 (ja) * | 2001-04-23 | 2008-12-03 | 株式会社リベックス | 位置検出器 |
-
2004
- 2004-07-01 EP EP20040015442 patent/EP1496339B1/de not_active Expired - Fee Related
- 2004-07-09 DE DE102004033691A patent/DE102004033691A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
None |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI461854B (zh) * | 2006-04-06 | 2014-11-21 | Asml Netherlands Bv | 微影裝置及器件製造方法 |
CN104567651A (zh) * | 2014-12-16 | 2015-04-29 | 中国科学院苏州生物医学工程技术研究所 | Pcb平面差动电感式角位移传感器 |
CN111656142A (zh) * | 2018-01-30 | 2020-09-11 | 梅科斯股份公司 | 对目标的缺陷有改善响应行为的非接触式径向位置传感器 |
US10921156B2 (en) | 2018-04-10 | 2021-02-16 | Simmonds Precision Products, Inc. | Rotary encoder with additive manufacturing features |
Also Published As
Publication number | Publication date |
---|---|
EP1496339B1 (de) | 2014-09-10 |
EP1496339A3 (de) | 2013-09-11 |
DE102004033691A1 (de) | 2005-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0334854B1 (de) | Messeinrichtung für drehwinkel und/oder drehgeschwindigkeit | |
EP0379492B1 (de) | Messeinrichtung für einen drehwinkel und/oder ein drehmoment | |
DE102007037217B4 (de) | Induktive Messeinrichtung zur berührungslosen Erfassung der relativen Drehposition zwischen zwei Körpern mit diametral angeordneten Spulen | |
EP0557608B1 (de) | Spulenaufbau | |
DE60130700T2 (de) | Induktiver Positionsgeber | |
EP0664441A2 (de) | Induktiver Stellungsgeber | |
DE10044839B4 (de) | Induktiver Positionssensor | |
DE2352851A1 (de) | Induktiver weggeber oder drehwinkelgeber | |
DE102011085737A1 (de) | Winkelsensor auf Wirbelstrombasis | |
EP0354936B1 (de) | Vorrichtung zur erfassung des wegs oder des drehwinkels | |
EP1496339B1 (de) | Induktiver Drehwinkelsensor | |
EP2946174A1 (de) | Spulenanordnung mit zwei spulen | |
EP2100102B1 (de) | Messanordnung | |
EP3245480B1 (de) | Induktive positionsbestimmung | |
DE9000575U1 (de) | Meßeinrichtung zur Bestimmung eines Drehwinkels | |
EP3090236B1 (de) | Sensorvorrichtung zum bestimmen einer verschiebung einer welle | |
EP0676622B2 (de) | Positionssensor | |
DE102006061771B4 (de) | Magnetischer Wegsensor mit linearer Kennlinie des Ausgangssignals | |
EP1554590A1 (de) | Spulenanordnung als magnetfeldsensor zur positionsbestimmung | |
EP0340317B1 (de) | Induktiver Wegaufnehmer | |
EP1516160A2 (de) | Sensorspule und wegmesssensor | |
DE10330899A1 (de) | Vorrichtung zur Ermittlung eines Drosselklappentellerwinkels | |
WO2003044334A1 (de) | Sensoranordnung zur erfassung der bewegung eines ankers mit unterdrückung von störspannungen | |
DE102008011971A1 (de) | Magnetisches Wegsensorsystem | |
WO2022023191A1 (de) | Positionssensor zum bestimmen der position einer ventilstange eines stellventils |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: G01D 5/20 20060101AFI20130805BHEP |
|
17P | Request for examination filed |
Effective date: 20130826 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20130919 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20140410 |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502004014710 Country of ref document: DE Effective date: 20141016 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502004014710 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20150611 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140910 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150701 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150701 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150731 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20160726 Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502004014710 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180201 |